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Complete the following equations:
a. 105B + 10n -> ? + 42He
b. 2310Ne -> 2311Na + ?
c. 12151Sb + ? -> 12152Te + 10n
Calculate the heat of combustion of napathalien on a molar basis. Find the molar heat of comb.: q/1 mol. of napthalien
A vessel containing 45.0 cm3 of helium gas at 25°C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium.
How many total calories do you consume from these three organic substances when you eat 1 candy bar 3 times a day?
The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. But given the same kinetic energies, a lighter molecule will move faster than a heavier molecule. Where R=8.314 J/(mol•K) and ? is molar mass in kilogr..
Calculate the total heat in joules needed to convert 25.00 g of ice at -3.50 degrees c to liquid water at 0.250 degrees c.
43.8 ml of 0.170 M HCl is needed to neutralize 37.6 ml of Ba(OH)2 solution. What is the molarity of the base. 2 HCl + Ba(OH)2 =BaCl2 +H20
A solution contains 3.2x10-1M Co2+ and 2.5x10-3M Fe3+. NaOH is added to the solution, which cation will precipitate first?
Predict whether the benzoin condensation would work with 4-tolualdehyde, 4- trifluoromethylbenzaldehyde, and 4-N ethylaminobenzaldehyde. Draw the structure of any products that are formed.
A) How many ions will this compound create in aqueous solution ? B) What is the coordination number of chromium ?
two engineers are calculating the molecular weight of a gas mixture containing oxygen and other gases. one of them uses
897.4 grams of sodium sulfide reacts with excess nitric acid. what volume of h2s gas is produced if the reaction is
in the following reaction identify the oxidized reactant the reduced reactant the oxidizing agent and the reducing
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